PLANO (CBSDFW.COM) – Rallying before an enthusiastic crowd of at least 1,000 people in Plano Wednesday night, Rick Santorum is hoping his GOP presidential campaign will now catch fire.

Earlier in the day, I sat down with him for a one-on-one interview.

Jack Fink: Why do you think your message resonated with voters last night in three states?

Rick Santorum: We’re talking about big things. We’re talking about a vision for this country. The problems this President brought upon us are not just economic. it’s more than that. We’re talking about an infringement of fundamental liberties here. The president is crushing our businesses because he believes he knows best and that bureaucracies can and should run our businesses and our healthcare system and even people’s lives.

Fink: How will you capitalize on your momentum now?

Santorum: Well, we’re raising money now, and that’s a very good thing. We’re going to head to Oklahoma tomorrow, and that’s a Super Tuesday state. We believe we can do exceptionally well in Oklahoma. Head to Michigan and Ohio, the Midwest has been kind to us so far.

Fink: What do you say to analysts and Republicans that say Gov. Romney still has the money and organization that he’s still likely to win – what do you say to them?

Santorum: All of those analysts and experts predicted I wouldn’t win any of those primaries last night, so I don’t pay much attention to analysts.

Fink: You’re likely going to face another barrage of attacks from Mitt Romney, and how will you respond? How do you convince voters you can beat President Obama?

Santorum: The best way to beat President Obama; you’re not going to beat President Obama by outspending him. Mitt Romney’s key so far is he’s outspent his opponents 5 to 1, and just beat them up.

Romney led the most recent poll in Texas, but that’s old now. The redistricting fight has delayed the Texas primary until April 3, but it will likely be later.

Santorum says the sooner the better: He thinks he will do very well in the state.